Matches in SemOpenAlex for { <https://semopenalex.org/work/W39559670> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W39559670 abstract "A widespread ash deposit within Quaternary marine sediments of the northern Chukchi Sea, Alaska, provides a unique time-stratigraphic horizon that defines both regions of sediment erosion and regions of deposition on a shallow, ice-covered epeiric sea. High-resolution seismic profiles show a thin, usually less than 5 m thick, Quaternary sediment cover overlying folded bed rock, which is incised by filled fluvial channels. Vibracores, to 6 m depth, record the stratigraphy and depositional history preserved within the thin blanket deposit. The basal units cored consist of overconsolidated silt, sand, and pebbly mudstone. They represent the underlying bed rock, channel-fill deposits, or Quaternary shallow-marine sequences containing ice-rafted cobbles. The ash deposit, ranging in thickness from 2 m to over 3 m, covers the basal stratigraphic units. It lies from 1 to 4 m beneath the sea floor and forms a distinctive reflector on 3.5 khz seismic profiles. The ash extends laterally at least 100 km east-west and 200 km north-south. The well-sorted, massive to laminated ash was deposited in a marine environment based on the occurrence of diatoms, foraminifera, and sponge spicules. Overlying the ash is a thin, less than 1 m thick, pebbly mudstone or marine sand. An abrupt textural breakmore » separates the uppermost depositional sequence from the strata overlying the ash. The uppermost sequence grades vertically from a gravel-shell lag, granules, or coarse sand to bioturbated mud and represents marine sediments deposited since the Holocene transgression. Recognition of the stratigraphic sequences bounding the ash deposit will aid in correlating and interpreting the depositional events and processes on this shallow sea.« less" @default.
- W39559670 created "2016-06-24" @default.
- W39559670 creator A5061341610 @default.
- W39559670 creator A5068426086 @default.
- W39559670 creator A5069520656 @default.
- W39559670 date "1986-05-01" @default.
- W39559670 modified "2023-09-27" @default.
- W39559670 title "Quaternary stratigraphy of northern Chukchi Sea, Alaska" @default.
- W39559670 hasPublicationYear "1986" @default.
- W39559670 type Work @default.
- W39559670 sameAs 39559670 @default.
- W39559670 citedByCount "0" @default.
- W39559670 crossrefType "journal-article" @default.
- W39559670 hasAuthorship W39559670A5061341610 @default.
- W39559670 hasAuthorship W39559670A5068426086 @default.
- W39559670 hasAuthorship W39559670A5069520656 @default.
- W39559670 hasConcept C109007969 @default.
- W39559670 hasConcept C112959462 @default.
- W39559670 hasConcept C114793014 @default.
- W39559670 hasConcept C126753816 @default.
- W39559670 hasConcept C127313418 @default.
- W39559670 hasConcept C151730666 @default.
- W39559670 hasConcept C160464908 @default.
- W39559670 hasConcept C17409809 @default.
- W39559670 hasConcept C2816523 @default.
- W39559670 hasConcept C64297162 @default.
- W39559670 hasConcept C77271252 @default.
- W39559670 hasConceptScore W39559670C109007969 @default.
- W39559670 hasConceptScore W39559670C112959462 @default.
- W39559670 hasConceptScore W39559670C114793014 @default.
- W39559670 hasConceptScore W39559670C126753816 @default.
- W39559670 hasConceptScore W39559670C127313418 @default.
- W39559670 hasConceptScore W39559670C151730666 @default.
- W39559670 hasConceptScore W39559670C160464908 @default.
- W39559670 hasConceptScore W39559670C17409809 @default.
- W39559670 hasConceptScore W39559670C2816523 @default.
- W39559670 hasConceptScore W39559670C64297162 @default.
- W39559670 hasConceptScore W39559670C77271252 @default.
- W39559670 hasLocation W395596701 @default.
- W39559670 hasOpenAccess W39559670 @default.
- W39559670 hasPrimaryLocation W395596701 @default.
- W39559670 hasRelatedWork W1509301617 @default.
- W39559670 hasRelatedWork W1540706951 @default.
- W39559670 hasRelatedWork W1565551680 @default.
- W39559670 hasRelatedWork W2010123138 @default.
- W39559670 hasRelatedWork W2029036000 @default.
- W39559670 hasRelatedWork W2039328550 @default.
- W39559670 hasRelatedWork W2066328158 @default.
- W39559670 hasRelatedWork W2068247325 @default.
- W39559670 hasRelatedWork W2078900018 @default.
- W39559670 hasRelatedWork W2087757746 @default.
- W39559670 hasRelatedWork W2117144313 @default.
- W39559670 hasRelatedWork W2124385948 @default.
- W39559670 hasRelatedWork W2130587594 @default.
- W39559670 hasRelatedWork W2161776558 @default.
- W39559670 hasRelatedWork W2164421439 @default.
- W39559670 hasRelatedWork W2185671739 @default.
- W39559670 hasRelatedWork W2396243205 @default.
- W39559670 hasRelatedWork W4900253 @default.
- W39559670 hasRelatedWork W904905960 @default.
- W39559670 hasRelatedWork W2084421470 @default.
- W39559670 isParatext "false" @default.
- W39559670 isRetracted "false" @default.
- W39559670 magId "39559670" @default.
- W39559670 workType "article" @default.